Abstract
In order to solve seamless positioning about indoor and outdoor, a SDS-TWR (Symmetric Double Side-Two Way Ranging) based wireless location system was proposed. The CSS (Chirp Spread Spectrum) signal, which has wide band characteristic, was used to obtain high-accuracy measurement of signal propagation delay. Least squares combining with linear Kalman filter algorithm was proposed in the positioning progress with linearization. Despite of increasing the complex of positioning algorithm, that improved the positioning accuracy, especially the stability of dynamic positioning situation. Finally, a hardware prototype system was exploited. And some tests were carried in the real indoor and outdoor environment. The results show that ranging error would not change significantly with distance increasing. And both of static and dynamic positioning accuracy are under one meter.
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Found by National key research and development project: 2016YFB0502402.
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Wang, Y., Yang, H., Sha, M. (2018). The Design and Implementation of a SDS-TWR Based Wireless Location System. In: Sun, J., Yang, C., Guo, S. (eds) China Satellite Navigation Conference (CSNC) 2018 Proceedings. CSNC 2018. Lecture Notes in Electrical Engineering, vol 497. Springer, Singapore. https://doi.org/10.1007/978-981-13-0005-9_2
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DOI: https://doi.org/10.1007/978-981-13-0005-9_2
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